Another term for saying "ok" or "yes". Trick Daddy is known for saying it in a hit song called "shutup", and CJ from GTA San Andreas.
"Ay, what's really good son", said Pat. "Not a damn thing", said Joe, "Im bout to get down on this Blunt, you want in". "Fo Sho Dough", said Pat.
by P Diz July 19, 2006
Get the fo sho doughmug.